Operating system
Decide whether these sentences are true or false :
1. Application software are sets of programs that control the basic function of the PC.( f )
2. The oldest operating system is LINUX.( f )
3. The operating system is the name given to the sets of programs that interface between the user ,the application programs.( )
4. windows 98 is the OS protected under the GNU general public license.(f )
5. OS/2 warp is the most complicated OS because it provide multitasking.(f )
6. In MS-DOS you communicate with the computer by pointing and clicking.( )
7. In MS-DOS internet becomes part of the user interface access.(f )
8. DISKCOPY is a DOS command means copy all files from one floppy disk to another.( )
9. The Open VMS OS is designed for all VAX computers.( )
10. CD means initializes a floppy disk.( )
11. The IBM OS/2 warp includes easy access to networks via mobile phones.( )
12. The application software refers to all applications which are used for specific purposes.( )
13. The Macintosh OS is kept various locations.( )
14. The **** OS is designed by bell laboratories.( )
15. REN means change names of your files.( t )
16. UNIX is the most used system for advanced CAD programs.( )
17. Linux OS is used in workstation for application, internet servers and work group computing.( )
18. **** OS is written Control language .( )
19. **** is a programming language that allows web pages to display animation and play music.( )
20. The compiler is a software that translates computer instructions into machine code ( )
21. "Routines "is a synonym for "sequences of instructions".( )
22. System software are the programs which control the basic function of the PC.( )
23. Operating Systems are kinds of application software.( )
24. MAC OS is a ****************-based operating system. ( )
25. Open VMS is the OS created to run **** application. ( )
26. The Mac OS is kept in 5 different locations.( )
27. In MS-DOS, DISKCOPY means change file name. ( )
28. Windows 95' is an open source OS. ( )
29. The basic DOS command for erasing files is DEL.( )
30. OS/2 warp is the most sophisticated Os in the world.( )
31. IBM stands for International Business Machines. ( )
32. **** OS is written in C language.( )
33. Lunix is the OS protected under the GNU public license( )
34. Out Look Express is the mail package included in MS-DOS. ( )
35. OS/2 warp is a multitasking OS.( )
36. The central component in **** Os is known as **** virtual machine.( )
37. Operating Systems are usually supplied by the manufacturer.( )
38. OS is automatically loaded when the computer is turned on. ( )
39. Word processors and spread sheets are examples of operating systems.( )
40. The Compiler is a language translator program.( )
41. Language translator is software that translates instructions into the machine code.( )
42. Unix is written in C language.( )
43. Mac OS is the most commonly used system for advanced CAD programs.( )
Optical breakthrough
1. CD-ROM is not an economical way of sharing information. ( )
2. Optical disks can be transported through the air port ****************l detectors without damaging the data. ( )
3. Magneto-optical (MO)drives use only laser to record information( )
4. we cannot rewrite information on CD-RW.( )
5. The DVD-ROM can hold 17 GB.( )
6. CD-R and CD-RW are the modern versions of old WORM disks ( )
7. MO usually comes in two formats: (1) 3.5 floptical disks have a capacity of 230 to 640 MB and (2) 5.25 cartridge can hold more than 2GB( )
8. DVD-ROM cannot play music (…)
9. A CD-ROM is a good way of storing large amounts of information, images, sounds, applications, etc. ( )
10. Magnetic disks can store information at much higher densities than optical disks ( )
11. Optical disks are not affected by magnetic fields.
12. Optical disks are faster than hard disks.
13. CD-R is a type of magnetic disks.
14. MO drives use both laser and an electromagnet to record information.
15. CD-RW are disks which can be erased and re-used.
16. MO drives are rewritable.
17. DVD ROM can hold complete Hollywood movies in different languages.
Hard Drives
18. Hard drive is a kind of a storage device (…)
19. The main function of a hard drive is to store data and programs.
20. We can measure the hard disk capacity with MB, KB or GB.
21. A hard disk spins at about 7,200 revolutions per minute- 20 times the speed of a floppy disk (…)
22. Hard disks can store and retrieve much information than with floppies.(…0
23. Hard disks can hold a small amount of information (…)
24. Hard disks don't work with the same way as floppies.(….)
25. Hard disks use rigid rotating disks.(…..)
26. Seek time does not refer to the average time required for the recording heads to move and access data (….)
27. If you use multimedia applications, you don't need the same storage capacity a required for word processing.(….)
28. "Access time" and '" 'data transfer rate" don't mean the same.(…)
29. Floppy disks are magnetic (…)
30. Optical disks are magnetic (…)
31. Had disks are optical (…)
32. CD-ROM is magnetic (…)
33. CD-ROM is optical (….)
34. CD- ROM is a kind of a storage device.(…)
35. CD- ROM is not a kind of a storage device.(…)
36. Each Jaz cartridge hold up to 2 GB.(…)
37. Each Jaz cartridge hold up to1.000 MB(..)
38. CD- ROM disks are used for storage of small amount of information (…)
39. CD- ROM disks are used for storage of massive amount of information
40. A zip drive can store p to 2 GB(…)
41. A zip drive can store p to 250 MB(…)
42. There are three kinds of hard disk; internal, external and removable(..)
43. Internal and external hard drives aren't fixed (..)
44. Internal and external hard drives are removable (…)
45. A "removable hard disk" allows information to be recorded on cartridge which can be removed and stored off-line for security purposes (….)
46. Popular removable hard disks include Jaz and Zip.
47. Zip and Jaz are kinds of internal hard disks(….)
48. CD-ROM and CD- recordable drives don't use the optical technology (…)
49. A Jaz cartridge can hold less data than a Zip cartridge (…)
50. The external hard disk is removable (….)
51. Magnetic hard disks are proffered for recording large amounts of information such as a dictionary or encyclopedia (…)
52. CD-ROMS are preferred for personal data storage (…)
53. Magnetic hard disks are still proffered for personal data storage (…)
54. "ms" means thousand of a second(…)
55. CAD does not mean computer aided design (…)
56. CD_ROM is the acronym for compact disk –read only memory (…)
57. The access time is not measured with milliseconds.(…)
floppies
58. You must protect your floppies against high temperatures.( )
59. You must remember to block the disk if you want to be sure that information is not changed or erased by accident.( )
60. You mustn’t put heavy objects on top of the disk.( )
61. Magnetic fields can damage the information stored on disks.( )
62. You must keep disks away from water and humidity.( )
63. You must touch the magnetized surface under the ****************llic cover.( )
64. You must put floppies into a protective case.( )
65. You must insert floppies into disk drive very carefully.( )
66. You mustn’t leave floppies near strong magnetic fields.( )
67. You must keep floppies at a temperature of between 10 C and 52 C.( )
68. You must bend or fold the disk.( )
69. The recording material of 3.5 micro disk is barium ferrite.( )
70. Information stored in the RAM is lost when the computer is turned off.( )
71. The reason of using floppies or hard disk is to store data and applications permanently.( )
72. Floppy disks consist of flexible plastic material, which has a magnetizable surface. ( )
73. Floppy disks are available in two sizes; 5.25-inch disks are used in old computers, 3.5 inch disks are the most popular today.( )
74. The surface of a floppy disk is divided into concentric circles or ‘tracks’, which are then divided into
"sectors". ( )
75. Before information can be recorded onto a floppy, it must be initialized or formatted.( )
76. Formatting means that magnetic areas are created for each track and sector, along with a catalogue or directory.( )
77. When you save a file , the operating system moves the read/ write heads of the disk drive towards empty sectors records the data and writes an entry for the directory.( )
78. When you open a file stored on a floppy disk , the operating system looks for its directory on the disk , moves the read / write heads to the correct sector ,and reads the file into the RAM area.( )
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